EP0755498B1 - Installation pour l'echange d'energie entre le sol et un echangeur d'energie - Google Patents

Installation pour l'echange d'energie entre le sol et un echangeur d'energie Download PDF

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Publication number
EP0755498B1
EP0755498B1 EP95915737A EP95915737A EP0755498B1 EP 0755498 B1 EP0755498 B1 EP 0755498B1 EP 95915737 A EP95915737 A EP 95915737A EP 95915737 A EP95915737 A EP 95915737A EP 0755498 B1 EP0755498 B1 EP 0755498B1
Authority
EP
European Patent Office
Prior art keywords
pipe
des
borehole
porous filling
füllung
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95915737A
Other languages
German (de)
English (en)
Other versions
EP0755498A1 (fr
Inventor
Hans Hildebrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KERN-HAUS AG
Geohil AG
Original Assignee
Geohil AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Geohil AG filed Critical Geohil AG
Publication of EP0755498A1 publication Critical patent/EP0755498A1/fr
Application granted granted Critical
Publication of EP0755498B1 publication Critical patent/EP0755498B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/08—Screens or liners
    • E21B43/084—Screens comprising woven materials, e.g. mesh or cloth
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/04—Gravelling of wells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/20—Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Definitions

  • the invention relates to a system according to the preamble of Claim 1.
  • the object of the invention is a system of the aforementioned Kind of continue to improve, so the water cycle is guaranteed.
  • the facility is special suitable for geothermal heat exchangers that are not very deep, for example up to 100 m into the ground. For such systems were previously two at a distance from each other arranged geothermal heat exchanger necessary. With the inventive The only solution is a geothermal heat exchanger and the feed of the return water at deeper Site avoids lowering of the groundwater by hydraulic Short circuit.
  • the porous filling can be close to the surface of the earth be guided, but an embodiment is more advantageous according to claim 2, wherein the barrier layer the penetration of Groundwater in the area of the porous filling at least delayed.
  • a further development according to claim is advantageous 3, which further seals the barrier layer.
  • the tube can be made of plastic, for example be, but it is preferably designed according to claim 5.
  • the geothermal heat exchanger shown in the drawing is in arranged a borehole 2, which is introduced into the soil 4 and opens into a shaft 6 at the upper end.
  • the Drill hole 2 is preferably from the bottom 8 with one Steel existing pipe 10 lined, which is a penetration from surrounding material prevented in the borehole.
  • the tube in the lower, preferably gravel-containing area of the soil the tube is provided with openings 12, which the connection between the surrounding layer of gravel 14 and the interior of the tube 10 produces.
  • a separation tube 18 is limited from plastic, which is a flow pipe 20 from an insulating plastic tube, a so-called Receives thermal tube, at the lower end of a pump 22nd is arranged.
  • the feed pipe 20 goes in the shaft 6 in a flow line 24 to a not shown Energy exchanger (for example according to EP-PS 0 386 176) about.
  • the lower end 26 of the separating tube 18 is at a distance a from, for example, 1 to 50 m from the bottom 8 of the borehole 2 arranged.
  • the separating tube 18 contains in the lower region Inlet openings 28 for the entry of heated flow water from the environment and for supply to the pump 22.
  • the return area 16 there are several return pipes distributed around the circumference 30 arranged at the top with a return line 32 are connected, which in a known manner from an energy exchanger comes.
  • the return pipes 30 extend up to to the bottom 8 of the borehole 2 and are at least below of the end 26 of the separating tube 18 with outlet openings 34 Mistake.
  • the area below the borehole is at least up to to the height above the side inlet openings 28 of the separating tube 18 with a porous filling 36, for example one Gravel with a grain size of 2 to 8 mm filled.
  • a barrier layer 38 filled out, which consists for example of clay material and extends to the upper edge of borehole 2.
  • the solution shown in the exemplary embodiment is, for example suitable for geothermal heat exchangers up to 100 m depth, whereby the lower end 26 of the separation tube, for example, in one Depth of 40 to 70 m can be arranged and the porous Filling 36 can start at a depth of 10 to 30 m.
  • the Geothermal heat exchanger possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Hydrology & Water Resources (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Sewage (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Claims (6)

  1. Installation d'échange d'énergie entre le sol et un échangeur d'énergie, comportant un échangeur de chaleur du sol pourvu d'un tube d'amenée (24) thermiquement isolé avec une pompe (22) disposée dans un puits (2) foré dans le sol, le tube d'amenée (24) et la pompe (22) étant entourés au sein du puits (2) d'un tube de chemisage (18) auquel est adjacente, radialement vers l'extérieur, une région de retour d'écoulement (16) destinée à la circulation d'eau en retour qui comporte des tubes de retour d'écoulement (30) en communication avec l'échangeur d'énergie ainsi qu'un remplissage poreux (36), les tubes de retour d'écoulement (30) débouchant au fond (8) du puits (2) et communiquant avec l'intérieur du tube de chemisage au moyen d'ouvertures d'amenée latérales (28) pratiquées dans le tube de chemisage (18), caractérisée en ce que le tube de chemisage (18) se termine à distance (a) du fond (8) du puits (2) et que des ouvertures de sortie latérales (34) des tubes de retour d'écoulement (30) sont disposées au moins plus bas que l'extrémité (26) du tube de chemisage (18), le puits (2) étant rempli du remplissage poreux (36) depuis le fond (8) au moins jusqu'à un niveau situé au-dessus des ouvertures d'amenée latérales (28) du tube de chemisage (18).
  2. Installation selon la revendication 1, caractérisée en ce qu'il est prévu au-dessus du remplissage poreux (36) une couche barrière (38) qui remplit la région de retour d'écoulement (16) et entoure les tubes de retour d'écoulement (30).
  3. Installation selon la revendication 1 ou 2, caractérisée en ce que la couche barrière (38) est au moins en d'argile.
  4. Installation selon l'une des revendications 1 à 3, caractérisée en ce que la paroi du puits (2) est pourvue d'un tube (10) comportant des lumières (12) disposées dans la région du remplissage poreux (36).
  5. Installation selon la revendication 4, caractérisée en ce que le tube (10) est en métal, de préférence en acier.
  6. Installation selon l'une des revendications 1 à 4, caractérisée en ce que le remplissage poreux (36) est fait de gravier de préférence d'une taille comprise entre 2 et 8 mm.
EP95915737A 1994-05-06 1995-05-04 Installation pour l'echange d'energie entre le sol et un echangeur d'energie Expired - Lifetime EP0755498B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH143194 1994-05-06
CH1431/94 1994-05-06
PCT/CH1995/000101 WO1995030864A1 (fr) 1994-05-06 1995-05-04 Installation pour l'echange d'energie entre le sol et un echangeur d'energie

Publications (2)

Publication Number Publication Date
EP0755498A1 EP0755498A1 (fr) 1997-01-29
EP0755498B1 true EP0755498B1 (fr) 1999-01-13

Family

ID=4210309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95915737A Expired - Lifetime EP0755498B1 (fr) 1994-05-06 1995-05-04 Installation pour l'echange d'energie entre le sol et un echangeur d'energie

Country Status (7)

Country Link
EP (1) EP0755498B1 (fr)
AT (1) ATE175767T1 (fr)
AU (1) AU2252995A (fr)
DE (1) DE59504824D1 (fr)
DK (1) DK0755498T3 (fr)
ES (1) ES2132658T3 (fr)
WO (1) WO1995030864A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110319609A (zh) * 2019-05-15 2019-10-11 临海迪萨智能技术有限公司 一种基于基岩地质的地热利用设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU733904B2 (en) 1997-03-24 2001-05-31 Evolve Communications, Inc. Two-way remote control with advertising display
CN110230896B (zh) * 2019-05-24 2020-10-27 中国石油大学(北京) 井下取热装置及井下取热方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2935832A1 (de) * 1979-09-05 1981-03-26 Artus 5060 Bergisch Gladbach Feist Verfahren zur erdwaermegewinnung und vorrichtung zur durchfuehrung dieses verfahrens
US5183100A (en) * 1991-02-14 1993-02-02 Harrell Jr James E System for efficiently exchanging heat or cooling ground water in a deep well

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110319609A (zh) * 2019-05-15 2019-10-11 临海迪萨智能技术有限公司 一种基于基岩地质的地热利用设备

Also Published As

Publication number Publication date
ES2132658T3 (es) 1999-08-16
AU2252995A (en) 1995-11-29
DK0755498T3 (da) 1999-09-06
EP0755498A1 (fr) 1997-01-29
ATE175767T1 (de) 1999-01-15
WO1995030864A1 (fr) 1995-11-16
DE59504824D1 (de) 1999-02-25

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